Improvement in wire-drawing machines



N v I 28hets-Slheet 1. r I J. S. WINSOR I Wire-Drawing Machine.

No. 207,330. Patented Aug. 20,187

W'ITN E V NTO R:

UNITED $TATE$ "Josnrn s.' w1nson, or Pnovinnivon, 'nnonn' Isilnivnfl MPROVEMENT IN WIRE-DRAWING warranties.

Specification forming part of Letters Patent No. 207,330, dated? August 2i), 1878 ;"applicationfiled 7 May 15, 1878. I

' To all whom it may concern Be it known that I, J osnrn S.WINs0R, of

the city and countyof Providence, and State view of a wire-drawing machine, parts'of' the frame and part of the drawing-drum of which are shown broken away to show the mechanism more clearly, all of which parts are shown in the positicn occupied when wire is being drawn. Fig. 2 is a front elevation of a wiredrawing machine, showing the position of all fthe parts in solid lines when the wire has roken and in broken lines when the machine is drawing wire. & Similar letters of reference indicate correspending parts. i

a is the draw-head or drum on which the wire is wound afterpassing through the drawplate It is'provided with the clutch-pins b.

. 'lhe draw-head is loose on the shaft. When lowered in its'place for drawing wire the pins bengage'with the clutch c secured to the shaft 11, to which power is applied in the usual manner. This driving-shaft, provided with the clutch 'c and the drawing-head, constitute the elements of the usual wire-drawing machine. The improvement consists in automatically raising-and thus detaching the drawing-head from the clutch and again automatically lowering and connecting the drawingelieadlto the clutch and driving-shaft d, and in performin g these operations by the power applied to the driving shaft and throughthe shaft. For this purpose I securetwo levers, e, hinged at a and 1 united at'e their forward end..' These levers e are placed on each side of the'shaft d suffi- 'cien'tly apart to allow the clutch c to revolve freely-between the two posts f hinged to the levers e, and preferably providedat their upper end with rolls or some anti-friction device. When, therefore, the end a of the levers e is raised, the posts f will raise the drawing-head. and disengage the same from the clutch c, and

7 ing head or drum of a wire-drawing machine,

particularlywhen nearly covered with wire, re-

quires considerableforce,I'place-on the shaft- V d the collar h, provided with a hole, through which the pin 13, secured to the four-armed cam j, can pass as the said camis raised or lowered, and also carry the cam around with the shaft d. In place of the collar It and pint the cam. j v may be lilosely fixed on the shaft d by a spline, so that the cam can be raised and lowered on the shaft d. v

K and K are two sets-of arms, two of each set opposite to each other. As shown in Fig.

2, the cam j will revolve without touching the arms K, as shown in solid lines; but as soon as the cam j is raised one of its curved arms will come in contact with the arm K and will revolve the cam g one-fourth of a revolution, which will permit the levers c to descend, and

with them the draw-head a, thus bringing the latter into gear with the clutch c. The cam j is raised by the lever I, one end of which reaches under the cam and the otherunderthe foot treadle m, to which the rod n is secured.

o is a pivoted draw-plate holder, held lqv a spring out of the direct line between the reel and draw-head, or in such other position as will cause it to swing into a notch in the rod it when the wireis passing through the draw plate. As soon as the wire breaks, the swing in-g die-holder is moved on its pivot by the pressure of the spring and releases the rod or, allowing the foot-treadle to rise, and thus releasing the lever-l and allowing the'cam j to descend, when it comes in contact with the arms K and turns the cam g, which raises the lever e, and, through the posts f, the draw- PAT E'NT 1 on.

' head, and stops the same autoinatically,=as

shown in Fig.2 in solid lines.

The draw-head can be stopped-at any time by pushing the rod n outward against th spring a without breaking the wire.

By the aid of this device drawing-machines 1. The combination, with the draw-head p1,.

,of the four-throw cam j, the cam 9, provided with the arms K and K, and means, substantially as described, by which the draw-head is raised, as described.

.2. The combination, with the hinged springpressed draw-plate 0, rod n, foot-treadle m, and the draw-head a, of the cams j and g,and means, substantially as described, by which the drawhead is stopped automatically when the wire breaks or runs through.

' JOSEPH s. wmsoR;

Witnesses I JOSEPH A. MILLER, JOSEPH A. MILLER, Jr. 

